Table 1 Characteristics of the sample (N = 6151)

Sex

Male

4874 (79%)

Female

1276 (21%)

Data missing

1

Age group

Infants and toddlers

84 (1.4%)

Preschoolers

534 (8.7%)

School age children

1681 (27%)

Teens

3851 (63%)

Data missing

1

Race and ethnicity

Black

910 (15%)

Hispanic

1027 (17%)

other

507 (8%)

White

3584 (59%)

data missing

123 (2%)

Insurance

Commercial

3006 (50%)

Low income

2960 (49%)

Medicare

39 (1%)^a

Data missing

146 (2%)

Place of injury

Road

3620 (59%)

Off-road

743 (12%)

Residential

595 (10%)

Unknown

1193 (19%)

Circumstances

In traffic

2488 (40%)

Elsewhere

3663 (60%)